PIC16F882_09 Datasheet, PDF (154/328 Pages) Microchip Technology – 28/40/44-Pin, Enhanced Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F882/883/884/886/887
FIGURE 12-2:
EUSART RECEIVE BLOCK DIAGRAM
SPEN
CREN
OERR
RCIDL
RX/DT pin
Pin Buffer
and Control
Data
Recovery
Baud Rate Generator
BRG16
+1
SPBRGH SPBRG
FOSC
÷n
Multiplier x4 x16 x64 ⁿ
SYNC 1 X 0 0 0
BRGH X 1 1 0 0
BRG16 X 1 0 1 0
The operation of the EUSART module is controlled
through three registers:
• Transmit Status and Control (TXSTA)
• Receive Status and Control (RCSTA)
• Baud Rate Control (BAUDCTL)
These registers are detailed in Register 12-1,
Register 12-2 and Register 12-3, respectively.
MSb
Stop (8)
RSR Register
7 ••• 1
LSb
0 START
RX9
FERR
RX9D
RCREG Register
FIFO
8
Data Bus
RCIF
RCIE
Interrupt
DS41291F-page 152
© 2009 Microchip Technology Inc.